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Chickens are smart, emotional animals; they deserve our respect.
My wife Janet and I started keeping chickens 14 years ago; we currently have four. Since we eat eggs, we figured we should take some responsibility for how those eggs come to us (I went vegetarian at age 20 once I realized the cruelty and suffering involved in producing the hamburgers I devoured). We wanted to see whether we could obtain eggs ethically and in a way that gave us more connection with our food. And, as bird lovers, we wanted to get to know some hens.
Lately, with egg prices soaring, there’s widespread interest in keeping chickens as a way of saving money. That was not our purpose, and raising hens hasn’t lowered our food bills—though they do give us plenty of lovely eggs. We invested in a secure chicken house and a covered run big enough to give our girls space to scratch and dust-bathe when it’s raining (on most days, we let them roam everywhere in our backyard except the vegetable garden, which they would happily destroy if they could). We feed them the best organic chicken feed. And we take them to the vet if required (one of our sweetest hens ever, Silvie, needed a hernia operation, a significant expense; that happened a year ago, and she’s fine now). We haven’t tried to calculate how much each egg costs us, but it’s more than a pittance.
There’s both good and sad to report from our years of living with hens. But we’re still at it and still learning.
One of the biggest payoffs of our hen hobby is the experience of living with alien creatures. Chickens aren’t much like dogs or cats. Birds have brains that are organized differently from mammalian brains, and birds see colors we can’t register. Chickens communicate vocally with about 25 different calls, screams, whines, cackles, purrs, and clucks. Janet and I spend a lot of time trying to understand what our hens are thinking and feeling, and we’ve learned a little about what motivates them.
Food is certainly at or near the top of the list. Chickens display extraordinary enthusiasm for food and are vigorously competitive whenever any treat is on offer. Their motto: Eat fast and ask questions later.
Reproduction sometimes takes top priority in the hen brain. We don’t keep roosters, since we live within city limits and an ordinance forbids them. Nevertheless, we have outlaw neighbors with roosters, and we are reminded daily that the male of the Gallus gallus domesticus species can indeed make a lot of noise. Roosters are required for fertile eggs, but in the absence of males, hens lay anyway. Some of our hens go broody occasionally, spending a couple of weeks sitting in their nest trying to incubate eggs that aren’t there, because we’ve collected them and put them in our refrigerator. Broody hens need special care, as they tend not to eat enough to keep themselves healthy. The hens often squat for us, as they would for a rooster wishing to copulate; when they do, we give them a backrub to partially fulfill their instinctive need—and to take advantage of a receptive moment when we can pet them or pick them up.
In 14 years, we have gotten to know 10 hens and can recall each one (Janet has painted individual portraits of most of them). We’ve witnessed sad deaths, but also beautiful lives.
Curiosity may be proverbially associated with cats, but we’ve found that chickens are perpetually inquisitive. They spend a large portion of each day exploring every corner of our yard, scratching in the dirt and digging holes. What’s down there? Who knows what might turn up?
Cleanliness requires effort. Sometimes chickens and other birds roll around in the dust as a way of discouraging mites and other pests (spa day!); afterward they shake their feathers in satisfaction. Feather maintenance is always a priority, and time must be devoted daily to preening. The versatile and sensitive beak must be cleaned occasionally by carefully wiping it on a hard surface (or our pants). Chickens and humans have very different ideas about cleanliness, but hens do care about it in their own way.
Affection might not be the strongest chicken motivator, but it certainly deserves to be listed. At first, we thought our chickens’ seeming enjoyment of human cuddles was merely a clever way of begging for more food treats. But long-term observation has shown us that some hens are just as affectionate as any dog or cat, and that food is not a strategic goal of cuddles. One of our hens, Lulu (more about her below) demands at least one cuddling session every day, and will sit in your lap for half an hour or more, soaking up love and offering all the hugs she can give, considering that she has wings rather than arms. Silvie is a cuddler too, but less demanding in that regard than Lulu. The hens’ affection for one another is a little more complicated, as we’re about to see.
Stella: avian elegance, on April 22, 2025. (Photo: Janet Barocco)
Chickens are highly social creatures and instinctively establish a pecking order: One hen occasionally pecks others on the back of the head (often when everyone is eating) to show her dominance.
Lulu is at the top of the social ladder, and she’s a big, loud, confident hen. Friends have asked us whether chickens have individual personalities; the best answer is an introduction to Lulu. She is bossy around the other hens and demanding toward us. If she wants treats or cuddles, she lets us know by screaming—sometimes for minutes at a time—and, unfortunately, she’s as loud as any rooster. Being the top hen comes with perks, but duties as well. It’s up to Lulu to keep social order, watch for danger, and manage relations with the humans.
Stella and Sparrow—of rare designer breeds, while Lulu and Silvie are Orpingtons—are smaller, lower in the order, and relatively quieter and more skittish. Whenever Lulu is close by, they must be wary of a peck. But they’re not constantly bullied and seem to be happy, well-adjusted hens. They know the order and get their needs met within it. Sparrow is a cute comedian, always evoking chuckles from us humans. Stella is a self-reliant, industrious, elegant loner; she’s the smallest of our hens and has a scratchy voice but lays big pastel green eggs.
Some of our clearest insights into chicken social behavior come at dusk, as the hens enter their house and choose a spot on the perch. Who gets to sleep where, and next to whom? The lineup is different every night, and each night there are several tense minutes of jockeying. Sparrow seems to love snuggling up against big, fluffy Lulu, despite the prospect of a peck. Stella likes ascending the henhouse ladder last, and, though low in the hierarchy, usually gets her choice of sleeping spot. Always-agreeable Silvie (our vet called her “a very personable chicken”) just takes whatever space is available.
The whole gang: Stella, Lulu (front, naturally), Silvie, and Sparrow, on April 22, 2025. (Photo: Janet Barocco)
I’ve been astounded to learn the degree to which chicken evolution has been hijacked by humans. Genes matter, and for thousands of years people have been wittingly or unwittingly selecting chickens for humanly desirable traits.
Often, chickens pay a price. Humans want eggs; so, they breed hens that lay up to 300 of them a year—an astonishing feat. Laying an egg is no small matter. It literally takes a lot out of you. While wild relatives of the domestic chicken can live 20 years, most commercial hens live short lives, often (when they’re not killed for meat) perishing after 2 to 5 years. And while they’re pumping out those eggs, they can easily suffer from nutritional deficiencies and bone problems.
People have also bred chickens for size, feather and egg color, and behavior (I’ll refrain from discussing the commercial chicken meat industry, which has its own breeding priorities). Indeed, breeding has created more extreme varieties of chicken than of any other animal species except Canis lupus familiaris (dog). All our most affectionate hens have been Orpingtons of one sort or another: no accident, as most Orpingtons tend to be friendly.
Is it right for one species to interfere so much with the evolution of another? Not many humans seem interested in entertaining the question. One could conclude that chickens have benefitted from their relationship with people: Gallus gallus is by far the most numerous bird species (there are nearly 30 billion of them). So, humans have contributed to chickens’ evolutionary success. But that success depends entirely on chickens’ continued utility to a capricious ape whose overall activities are wrecking the biosphere. My advice: If you love feathered creatures, keeping chickens can teach you a lot about them, but you’ll do far more for this broad class of animals by creating or restoring habitat for wild birds.
In 14 years, we have gotten to know 10 hens and can recall each one (Janet has painted individual portraits of most of them). We’ve witnessed sad deaths, but also beautiful lives. Chickens are smart, emotional animals. They can decimate local insect populations, but they are resilient and courageous. They deserve our respect.
Oh, did I mention the poop? There’s lots of it. Everywhere. Every day. It’s good for the compost pile and the garden.
Recommended reading:
Andrew Lawler, Why the Chicken Crossed the World
Sy Montgomery, What the Chicken Knows
Melissa Coughey, How to Speak Chicken
Theodore Xenophon Barber, The Human Nature of Birds
Gail Damerow, Storey’s Guide to Raising Chickens
Page Smith and Charles Daniel, The Chicken Book
Alice Walker, The Chicken Chronicles
Joseph Barber, The Chicken: A Natural History
Clea Danaan, The Way of the Hen: Zen and the Art of Raising Chickens
It was only a matter of time before the horrific and unjust conditions in the animal agriculture system became the proving ground for a pathogen capable of igniting a dangerous pandemic. Now our luck may have run out.
In Albert Camus’ novel, The Plague, set in the French Algerian town of Oran, rats one day begin showing up dead on residents’ doorsteps, dying with violent spasms and blood pouring from their mouths.
At first, the rats’ death agonies are only a curiosity to the townspeople. But then the rats begin dying in greater numbers, their corpses piling up in the streets. “The staircase from the cellar to the attics was strewn with dead rats, 10 or a dozen of them. The garbage bins of all the houses in the street were full of rats.”
When Dr. Rieux, a physician, remarks upon the strange phenomenon to his mother, she replies vaguely, “It’s like that sometimes.”
The avian flu threat, however, has now given us an opportunity to rethink our existential and ethical relations with the other animals of our planet, and to recognize how closely our fates are bound together.
By the time Rieux realizes what is happening, it is too late. Bubonic plague has come to Oran. Soon it is the townspeople themselves who are dying in agony, their bodies heaping up in mounds—like the rats whose suffering, and fates, they had only days before viewed with indifference...
Lately, I have been thinking of Camus’ novel, as we ourselves teeter on the brink of a new deadly plague—avian flu. Like the people in the story, we too have remained indifferent to the suffering, and shared collective fate, of our fellow creatures. And we continue to do so at our own peril.
For more than a year, I have followed news reports of the H5N1 virus that causes bird flu, or highly pathogenic avian influenza, as it has torn across the world, infecting hundreds of species and killing millions of animals, from storks and snowy owls to cranes and harbor seals, from foxes and herons to finches and lions. Geese have fallen from the skies dead over Kansas City. House cats have died from violent seizures in Iceland and Texas. The virus has decimated colonies of Adélie penguins in Antarctica, wiped out albatross fledglings on the remote South African island of Marion, killed dolphins and manatees off the Florida coast.
Never have scientists seen a virus infect so many species all at once, nor spread so quickly or with such devastating effect. It is the first observed panzootic—a pandemic of “all” animals. Researchers are now calling avian flu an “existential threat” to planetary biodiversity.
While droves of our fellow beings were dying in agony in far-away places, however, few people seemed to notice or care. Even today, we resist acknowledging our own role in the catastrophe—the fact that it is we ourselves, by imprisoning billions of animals in the food system, then allowing the virus to run rampant inside it, who have turned H5N1 into a trans-species bioweapon. And now that bioweapon is turning toward us.
While the H5N1 virus is naturally occurring, it emerged as a global problem only when it became concentrated in the Asian poultry industry in the late 1990s. Farmers at the time killed hundreds of millions of chickens and other birds to try to contain the virus—in many cases, by burying them alive or setting them on fire. Since then, H5N1 has resurfaced again and again on animal farms, leading to the deaths of poultry and humans alike.
For years, epidemiologists have warned that the animal agriculture system was a time bomb waiting to go off. Most of the deadly diseases ever to have afflicted our own species, including cholera, smallpox, measles, tuberculosis, AIDS, and influenza, have been caused by our exploitation of animals for food. Today, three-quarters of all emerging infectious diseases are in fact zoonotic in origin—a consequence chiefly of the modern animal food system.
That system has increased our vulnerability to animal-borne diseases in two ways. First, raising cattle and other ruminants for slaughter requires staggering anounts of land, which destroys animal habitat and crowds species together, thus enabling viruses to find new hosts who lack natural immunity to them. (More than half the surface of the Earth has been turned into farmland, and 80% of that is devoted to raising animals for slaughter.) Second, we have created a permanent source of new plagues by concentrating sick and traumatized animals together in industrialized conditions.
Even with a vaccine, Americans can expect little help from their government should a bird flu pandemic materialize, since President Donald Trump is eviscerating the federal agencies responsible for public health and disease prevention.
Few people are aware of the sheer scale of the global animal food system. But each year, 80,000,000,000 land animals and up to 2,700,000,000,000 marine animals die violently to satisfy growing human demand for animal products. This system is now the most ecologically destructive force on our planet—the leading cause of the mass extinction crisis and the second-leading source of greenhouse gas emissions, as well as the main cause of freshwater system loss, algal blooms, and land degradation.
The animal food system is also a moral and epidemiological calamity. Billions of sensitive chickens, pigs, cows, and others are forced into miserable, fetid conditions of intensive confinement, where they are beaten, tormented with electric prods, and then brutally killed at a fraction of their lifespans. Our prisoners suffer such psychological and physiological stress and trauma that millions die even before they can reach a slaughterhouse. So to keep them alive, farmers pump them full of antibiotics. Seventy percent of antibiotics worldwide are fed to farmed animals, a practice which, in turn, is fueling deadly new strains of antibiotic-resistant “superbugs.”
Natural ecosystems constrain the virulence of pathogens like H5N1, by selecting out the most lethal traits that would otherwise keep a virus from spreading by killing its host prematurely. As science writer Brandon Keim observes, however, the “constraints on virulence” ordinarily found in nature are absent on industrialized poultry farms, where birds are killed at a tiny fraction of their normal lifespans. In fact, virulence is selected for.
It was only a matter of time, thus, before the horrific and unjust conditions in the animal agriculture system became the proving ground for a pathogen capable of igniting a dangerous pandemic. Now our luck may have run out.
Last year, the H5N1 virus crossed a crucial threshold, when wild birds exposed to concentrations of the virus on animal farms contracted the disease and spread it to other species along their migration routes. Meanwhile, the Biden administration, deferring to powerful agricultural interests—and seeking to avoid antagonizing rural voters in an election year—squandered every opportunity to track and contain the deadly disease. For months, the U.S. government effectively stood by and did nothing. As a result, H5N1 has now become endemic throughout the U.S. animal agriculture system. And the longer it remains there, the more likely is it to mutate into a form transmissable between humans.
How bad would that be? In 2005, David Nabarro, then the United Nations system coordinator for avian and human influenza, warned that a bird flu pandemic could kill up to 150 million people. That may be a conservative estimate, however, since the known past mortality rate from avian flu in humans has been over 50%, making H5N1 up to 100 times deadlier than Covid-19. Unlike Covid-19 furthermore, a bird flu pandemic would not primarily target older adults or people with underlying conditions, but would kill indiscriminately.
The H5N1 virus is neuropathic, meaning that it attacks the brain, causing conditions ranging from mild encaphalitis to seizures, coma, and death. Children and pregnant women would be especially vulnerable to the virus. When a Canadian teen contracted the H5N1 virus last year, she suffered multiple organ failure and had to be placed on a respirator for months before she recovered. Avian flu has meanwhile killed 90% of the pregnant women who, in past decades, contracted it. “We are in a terrible situation and going into a worse situation,” Angela Rasmussen, a Canadian virologist, recently warned. “I don’t know if the bird flu will become a pandemic, but if it does, we are screwed.”
So far, we have been extremely lucky. The dozens of farm workers who have fallen ill from avian flu this last year, most from exposure to infected dairy cows, appear to have contracted a mild version of the virus. Most have now recovered. Last month, however, the far deadlier D1.1 variant of the virus was discovered in a herd of cattle in Nevada. Should such a lethal variant mutate into a transmissable form, and become capable of binding to receptors in our lungs, the resulting pandemic could lead to societal chaos and mass mortality.
For too long, we have behaved as if our species were “an island entire of itself,” and we were the only beings whose lives mattered or had value.
Just before leaving office, then-President Joe Biden transferred $590 million to Moderna to accelerate development of a bird flu vaccine. Other companies are also working on vaccines. But it’s anyone’s guess if they will be ready in time. Even with a vaccine, Americans can expect little help from their government should a bird flu pandemic materialize, since President Donald Trump is eviscerating the federal agencies responsible for public health and disease prevention. The new administration has slashed the budgets and staff of the Centers for Disease Control and Prevention and FEMA, suppressed CDC updates on bird flu, and taken the U.S. out of the World Health Organization—the international agency responsible for monitoring and providing guidance on global public health threats, including pandemics.
Worsening matters, any federal response to an avian flu pandemic would be in the hands of Robert F. Kennedy Jr., the new secretary of Health and Human Services—a notorious vaccine skeptic. President Trump himself would likely respond to a new pandemic not by protecting the most vulnerable Americans, but by using the crisis to expand his own powers, if not to impose martial law.
Perhaps our luck will hold, and we will somehow all avoid getting avian flu. But we can’t count on it. Nor can we afford to go on ignoring the inextricable links between our oppression of nonhuman animals and growing pandemic risk.
The best way to prevent zoonotic pathogens from making us sick in future is to begin transitioning to an all plant-based diet. In doing so, we would not only spare billions of animals further suffering, but also mitigate a great deal of environmental damage to our planet. And we ourselves would be healthier for it. Scientists have shown that vegans have lower rates of heart disease, stroke, cancer, and type 2 diabetes than meat-eaters. One study in JAMA found that vegans may even live longer than “omnivores” who consume animal products.
Tragically, however, rather than rethink our dietary choices, we continue to cling to the animal system, and to its vast cruelties, against the better claims of reason and conscience. Few people indeed seem aware of the violence and suffering that attend even “ordinary” animal production. To produce eggs, for example, tens of millions of chickens are jammed into cages so small that they cannot extend even a single wing. The birds’ beaks are painfully cut off to keep them from pecking at their cell mates in distress. Then the chickens are repeatedly starved to shock their systems into producing more eggs. Finally, they are violently grabbed and thrown into a truck, and brought to the slaughterhouse. There, they are shackled upside down by their legs and have their throats cut, often while still conscious. Many are boiled alive in feather removal tanks. Billions of male baby chicks—of no use to industry—are meanwhile ground up alive or are simply tossed away in dumpsters, to suffocate or die from dehydration.
These and other barbaric practices have no place in society today. Even now, however, Americans are concerned only about soaring egg prices, not about the suffering of the tens of millions of animals being killed in ventilator shutdowns across the country. The idea that we should simply stop eating eggs—for the birds’ well-being as much as for our own safety—appears not to have occurred to anyone.
As an ethicist who has spent decades lecturing and publishing on animal rights, hoping to convince people that there is a better way to live a human life than by imprisoning and killing our fellow beings, I find it beyond discouraging how little progress has been made toward ending our violence against animals in the food economy. The avian flu threat, however, has now given us an opportunity to rethink our existential and ethical relations with the other animals of our planet, and to recognize how closely our fates are bound together.
“Ask not for whom the bell tolls—it tolls for thee.” When the poet John Donne wrote these words, centuries ago, it was customary for churches in England to toll their bells to announce the death of someone in the community. We are deeply connected to one another, Donne was saying, and what happens to one, happens to all.
“No man is an island entire of itself,” Donne wrote. Each of us “is a piece of the continent, a part of the main.” Every death therefore “diminishes me, because I am involved in mankind.”
Donne’s poem has taken on new significance, as avian influenza now closes in around us. Our species is not alone on the Earth, but part of the biotic main, a “piece of a continent” teeming with myriad other suffering, mortal beings. And what we do to the other animals, we do also to ourselves.
For too long, we have behaved as if our species were “an island entire of itself,” and we were the only beings whose lives mattered or had value. Now, after long treating our fellow creatures with violence and contempt, as mere “things” to be exploited and killed for our purposes, our karmic debt is coming due, in a ruined Earth and escalating pandemic risks. The tolling of the bell today is avian flu, and it tolls for us.
For agriculture as with energy, the real climate solutions are being silenced by the corporate cacophony.
I remember being filled with excitement when the Paris agreement to limit global warming to 1.5°C was adopted by nearly 200 countries at COP21. But after the curtains closed on COP29 last month—almost a decade later—my disenchantment with the event reached a new high.
As early as the 2010s, scientists from academia and the United Nations Environment Program warned that the U.S. and Europe must cut meat consumption by 50% to avoid climate disaster. Earlier COPs had mainly focused on fossil fuels, but meat and dairy corporations undoubtedly saw the writing on the wall that they too would soon come under fire.
Our food system needs to be sustainable for all—people, animals, and our planet.
Animal agriculture accounts for at least 14.5% of global greenhouse gas emissions, over quadruple the amount from global aviation. Global meat and dairy production have increased almost fivefold since the 1960s with the advent of industrialized agriculture. These factory-like systems are characterized by cramming thousands of animals into buildings or feedlots and feeding them unnatural grain diets from crops grown offsite. Even if all fossil fuel use was halted immediately, we would still exceed 1.5°C temperature rise without changing our food system, particularly our production and consumption of animal-sourced foods.
But climate change is just one of the threats we face. We have also breached five other planetary boundaries—biodiversity; land-use change; phosphorus and nitrogen cycling; freshwater use; and pollution from man-made substances such as plastics, antibiotics, and pesticides—all of which are also driven mainly by animal-sourced food production.
The 2023 update is shown to the Planetary boundaries. (Graphic: Azote for Stockholm Resilience Centre, based on analysis in Richardson et al 2023/ CC BY-NC-ND 3.0)
By the time world leaders were ready to consider our food system's impact on climate and the environment, the industrialized meat and dairy sector had already prepared its playbook to maintain the status quo. The Conference of Parties is meant to bring together the world's nations and thought leaders to address climate change. However, the event has become increasingly infiltrated by corporate interests. There were 52 delegates from the meat and dairy sector at COP29, many with country badges that gave them privileged access to diplomatic negotiations.
In this forum and others, the industry has peddled bombastic "solutions" under the guise of technology and innovation. Corporate-backed university research has lauded adding seaweed to cattle feed and turning manure lagoons the size of football fields into energy sources to reduce methane production. In Asia, companies are putting pigs in buildings over 20 stories tall, claiming the skyscrapers cut down on space and disease risks. And more recently, Bill Gates and Jeff Bezos started bankrolling research and development into vaccines that reduce the methane-causing bacteria found naturally in cows' stomachs. The industry hopes that the novelty and allure of new technologies will woo lawmakers and investors, but these "solutions" create more problems than they solve, exacerbating net greenhouse gas emissions, air and water pollution, wildlife loss, and freshwater depletion.
Emissions from animal-sourced foods can be broadly divided into four categories: ruminant fermentation (cow burps); manure; logistics (transport, packaging, processing, etc.); and land-use change, i.e., the conversion of wild spaces into pasture, feedlots, and cropland for feed. In the U.S., ruminant fermentation and manure emit more methane than natural gas and petroleum systems combined.
A new report found that beef consumption must decline by over a quarter globally by 2035 to curb methane emissions from cattle, which the industry's solutions claim to solve without needing to reduce consumption. But the direct emissions from cattle aren't the only problem—beef and dairy production is also the leading driver of deforestation, which must decline by 72% by 2035, and reforestation must rise by 115%. About 35% of habitable land is used to raise animals for food or to grow their feed (mostly corn and soy), about the size of North and South America combined.
Thousands of cattle mill about or huddle under shade structures at a large cattle ranch where they spend the last few months of their lives before going to slaughter in Coalinga, California, USA, 2022. (Photo: Vince Penn / We Animals)
Put simply, the inadequate solutions put forth by Big Ag cannot outpace industrialized farming's negative impacts on the planet. While seaweed and methane vaccines may address cow burps, they don't address carbon emissions from deforestation or manure emissions of nitrous oxide, a greenhouse gas over 270 times more powerful than CO2. They also don't address the nitrate water pollution from manure, which can sicken people and cause massive fish kills and harmful algal blooms; biodiversity decline from habitat loss, which has dropped 73% since the rise of industrialized animal agriculture; freshwater use, drying up rivers and accounting for over a quarter of humanity's water footprint; or pesticide use on corn and soy feed, which kills soil microorganisms that are vital to life on Earth.
Skyscrapers, while solving some land-use change, do not consider the resources and the land used to grow animal feed, which is globally about equivalent to the size of Europe. They also don't address the inherent inefficiencies with feeding grain to animals raised for food. If fed directly to people, those grains could feed almost half the world's population. And while the companies using pig skyscrapers claim they enhance biosecurity by keeping potential viruses locked inside, a system failure could spell disaster, posing a bigger threat to wildlife and even humans.
We need both a monumental shift from industrialized agriculture to regenerative systems and a dramatic shift from animal-heavy diets to diets rich in legumes, beans, vegetables, fruits, and whole grains, with meat and dairy as a specialty rather than a staple.
One solution that is gaining traction as an alternative to Big Ag's proposals is regenerative grazing. When done right, regenerative grazing eliminates the need for pesticides and leans into the natural local ecology, putting farm animals onto rotated pastures and facilitating carbon uptake into the soil. Regenerative animal agriculture is arguably the only solution put forward that addresses all six breached planetary boundaries as well as animal welfare and disease risk, and studies suggest it can improve the nutritional quality of animal-sourced foods. While it is imperative to transition from industrialized to regenerative systems, regenerative grazing comes with major caveats. This type of farming is only beneficial in small doses—cutting down centuries-old forests or filling in carbon-rich wetlands to make way for regenerative pastures would do much more climate and ecological harm than good. Soil carbon sequestration takes time and increases with vegetation and undisturbed soil, meaning that any regenerative pastures made today will never be able to capture as much carbon as the original natural landscape, especially in forests, mangroves, wetlands, and tundra. And while regenerative farmlands create better wildlife habitats than feedlots and monocultures, they still don't function like a fully natural ecosystem and food web. Also, cattle emit more methane than their native ruminant counterparts such as bison and deer.
Most notably, however, we simply don't have enough land to produce regeneratively raised animal products at the current consumption rate. Regenerative grazing requires more land than industrialized systems, sometimes two to three times more, and as mentioned the livestock industry already occupies over one-third of the world's habitable land. In all, we have much more to gain from rewilding crop- and rangeland than from turning the world into one big regenerative pasture.
A horned Pineywoods bull watches a white and black spotted Kune Kune pig at a regenerative farm in North Carolina, USA. (Photo: Mike Hansen / Getty Images)
All this brings us to one conclusion—the one that was made by scientists over a decade ago: We need to eat less meat. As Action Aid's Teresa Anderson noted at this year's COP, "The real answers to the climate crisis aren’t being heard over the corporate cacophony."
Scientific climate analyses over the last few years have been grim at best, and apocalyptic at worst. According to one of the latest U.N. reports, limiting global temperature rise to 1.5°C (2.7°F) requires cutting greenhouse gas (GHG) emissions by 57% by 2035, relative to 2023 emissions. However, current national policies—none of which currently include diet shifts—will achieve less than a 1% reduction by 2035. If the 54 wealthiest nations adopted sustainable healthy diets with modest amounts of animal products, they could slash their total emissions by 61%. If we also allowed the leftover land to rewild, we could sequester 30% of our global carbon budget in these nations and nearly 100% if adopted globally.
Our food system needs to be sustainable for all—people, animals, and our planet. Quick fixes and bandages will not save our planet from climate change, biodiversity loss, and pollution. We need both a monumental shift from industrialized agriculture to regenerative systems and a dramatic shift from animal-heavy diets to diets rich in legumes, beans, vegetables, fruits, and whole grains, with meat and dairy as a specialty rather than a staple. As nations draft their policies for COP30, due early this year, we need leaders to adopt real food system solutions instead of buying into the corporate cacophony.